William a



(No Model.)

W. A. MCGUIRB 8v G. HUBBARD, J1t GAB, TRUCK.

NrTnn STATES PATENT @Trina WILLIAM A. MOGUIRE AND MOSES G. HUBBARD, JR.,OF CHICAGO, ILLINOIS, ASSIGNORS TO THE MCGUIRE MANUFACTURING COMPANY, OFSAME PLACE.

CAR-TRUCK.

SPECIFICATION forming part of Letters Patent No. 580,951, dated April20, 1897.

' Application mamme 6,1895. seria No. 551,837. (No moda.)

To all whom t may concern.-

Beit known that we, WILLIAM A. MCGUIRE and MOSES G. I-IUBBARD, Jr.,citizens of the United States, and residents of the city of Chicago, inthe county of Cook and State of Illinois, have invented certain new anduseful Improvements in Car-Trucks, of which the following is aspecification, reference being had to the accompanying drawings,inwhich- Figure 1 is a side elevation. Fig. 2 is an enlarged detail, beingan end view of one of the journal-boxes and adjacent parts. Fig. '3 is avertical section of the parts shown in Fig. 2.

Our invention relates to car-trucks; and it consists of an improvedmethod of construction whereby the truck-frame is cushioned from shockboth laterally and vertically.

It further consists of an improved method of construction whereby thecar is lowered and yet the truck-frame is fully cushioned upon the axlejournal-boxes.

' That which we regard as new will be set I forth in the claims.

In the drawings,4 indicates the truck-frame, of which 5 6 indicate thewheels.

7 8 indicate that portion of the truck which directly supports thecar-body.

9 10 11 indicate springs.

12 indicates one of the axle j ournal-boxes, which is in general of theusual shape and is fitted into a suitable opening in the truckframe.

13 14 indicate links supported by the journal-boxes a short distanceapart, which links are free to swing laterally.

15 indicates a plate or seat which is supported by the links 13 14, asbest shown in Fig. 3, suitable lugs 16 being provided on the under sideof said seat to properly confine the links and prevent said seat fromslipping out of position.

18 indicates a plate or cap similar in some respects to the plate orseat 15, the cap 18 being secured to the truck by flanges 19, which risefrom its upper side, as indicated by dotted lines in Figs. 2 and 3.

2O 21 indicate spiral springs arranged side by side between the seat 15and cap 18, as shown in Fig. 3.

We desire to have it understood that we do not confine ourselves to anyspecific form of seats and caps for the springs.

Our invention is 'applicable to all railwaycars, but is especiallydesigned for electricmotor cars. Heretofore there has been nosatisfactory method of mounting the truckframe upon the axlejournal-boxes, because the springs interposed between the tops of theaxle j ournal-boxes raised the car too high from the track. and alsosuch construction provided only against vertical jars, while it isnearly if not quite as necessary to cushion against lat-eral as againstvertical jars, even on a straight track. lateral cushion is even moreimportant than a vertical one, as it relieves the severe shock ofstriking curves and facilitates the passage of the car around curves bypermitting the axles to assume a partly-radial position. To get thislateral cushion on the truck-frame,

On curves, however, a

we support it from the axle journal-boxes on the swinging links 13 14,which cushion the' truck and car against lateral jars. For the purposeof cushioning against vertical jars we interpose between said links 1314 and the cap 18, which is connected to the truck-frame, a series ofspiral springs 2O 21, said springs being supported upon the swinginglinks 13 14, the truck-frame being supported upon the springs 20 21.

We prefer to use spiral springs 2O 21, but instead of such springsrubber, elliptical, or other suitable springs may be used. When spiralor rubber springs are used, if desired, they may be located either oneach side of the axle journal-boxes on a line practically parallel withthe side of the truck-frame or they may be arranged directly under thejournal-boxes on a line practically parallel with the axle, as shown inFigs. 2 and 3, or any other suitable arrangement of said springs may bemade.

It will be observed that the springs 2O 21 are arranged below the axlejournal-boxes and that they are supported by the swinging links 13 14,the object being to lower the carbody, which is an important feature ofour invention; but, so far as this feature alone is concerned, insteadof supporting them upon the swinging links,as illustrated, such springsmay be supported below the axle journalboxes by any other suitablemeans. We prefer the swinging links, however. The object, however, beingto lower the car-body and for IOO that purpose to get the springs forcushioning` the truck-frame upon the axle journalboxes loca-ted belowinstead of above said journal-boxes, we do not eonline ourselves to theparticular construction shown for securing that result. y thus placingthe supporting-springs below the journal-boxes we can save in most easesall and in other cases nearly all the full height of said springs in thedistance from the track to the car-sills; also, the cap 1S being firmlytitted to the truckframe below' the axle journal-boxes, the depth of thetruck-frame over the journal-boxes can be reduced and the car-body isfurther lowered, the fulcrum being removed to practically the center ofthe axle, thereby strengthening the frame at its weakest part, enablingthe truck to carry a greater proportion of the load upon the extremeends of the truckframe, which aids materiallyv to prevent objectionablelongitudinal oscillation.

That which we claim as our invention, and desire to secure by LettersPatent, is-

l. The combination with a ear-truck frame, and journal-boxes, of twolaterally-swinging links suspended from said journal-boxes and twosprings carried by said links and ar- -ranged parallel with the axle forsupporting the truck-frame, and seats and caps tor said springs,substantially as described.

2. The combination with a truck-frame constructed to embrace thejournal-boxes, ofthe journal-boxes, two springs arranged parallel witheach axle for said truck-frame to cushion said frame against verticaljar, and laterally-swinging links in which said springs are carried forcushioning said frame against lateral jar, and seats and caps torsaidsprings, substantially as described.

3. A car-truck frame elastically mounted on the axle journal-boxes bymeans of springs located below and supported by laterallyswinginglinkson said journal-boxes, and acting upon the under side of saidtruck-trame the said springs being provided with seats and caps,substantially as and for the purpose specified.

4. In a car-truck, thc combination oi springseats located below the axlejournal-boxes and supported from said journal-boxes bylaterally-swinging links, springs mounted on said spring-seats, caps forsaid springs and a truck-frame so mounted on said springs that the upperor top portions of said springs will act upon the under side of saidframe to support it, substantially as described.

5. In a ear-truck, the combination with the truck-frame, thc axle, andthe journal-boxes, of a plurality of springs arranged parallel with theaxle for elastieally mounting the truck-frame upon the journal boxes,said springs being located below said journalboxes, a plurality oflaterally-swinging links by which said springs are suspended from thejournal-boxes, and seats and caps for said springs, substantially asdescribed.

G. In a car-truck, the combination with the axle journal-boxes, and thelaterally-swinging links, of the springs for elastieally mounting thetruck-frame upon the journal-boxes, said springs being located belowsaid journalboxes and supported therefrom by said laterally-swinginglinks, and seats and caps Afor said springs, substantially as described.

7. In a truck for four-wheeled motor-cars, a truck-frame having openingstherein to receive the axle journal-boxes, spring-seats attached to saidframe on the underside thereof, laterally-swinging links mounted on saidjournal-boxes, spring-caps mounted on said swinging links, and springsinterposed between said spring-caps and said spring-seats forsupportingsaid truck-frame,substantially as described.

S. In a truck for four-wheeled cars, a truckira-me provided withopenings for receiving the axle journal-boxes, spring-caps Iirmly fittedinto the openings in said frame below the journal-boxes, and springslocated below and supported from said journal-boxes bylaterally-swinging links for cushioning the truck-frame, substantiallyas described.

0. In a car-truck having axle journal-boxes, a spring-seat under eachaxle journal-box, two springs mounted in each seat, two swinging linksfor suspending each spring-seat in its journal-box, and a spring-capsecured to the truck for receiving each ot' said sets of springs, incombination with atruck-frame mounted upon said spring-caps, saidtruckframc being rigidly attached to the ear-body longitudinally andcircumi'erentially, substantia-lly as described.

10. The combination with a truck-trame, and car-body-supporting springs,of journalboxes, swinging links suspended from said journal-boxes, andsprings supported on a bearing carried by said links and bearing againstaplate secured to said truck-frame, substantially described.

11. The combination with a truck-frame mounted upon journal-boxes bylaterallyswingii'lg links, and intervening springs supporting saidtruck-frame upon said links, and seats and caps for said springs, ofcar-bodysupporting springs mounted upon bearings carried by saidtruck-frame, and a top frame mounted upon said latter springs forreceiving the car-body, substantially as described.

l2. The combination with a truck-frame, the axle journal-boxes, thelaterally-swinging links, and springs located intermediate saidjournal-boxes and links and acting upon the under side of thetruck-frame, and seats and caps for said springs, of springs mountedupon bearings carried by said truck-frame, and a top frame mounted uponsaid upper springs for receiving the car-body, substantially asdescribed.

TILLIAM A. MCGUIRE. MOSES G. lIUljlSAltD, JR. Vilitnesses:

Jol-1N L. JACKSON, A. Il. ADAMs.

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